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Official data from INPI

SISTEMA DE CONTROLE DE DESCARGA PARA USO COM UM APARELHO SANITÁRIO

Prazo de SigiloInvention Patent

Application data

Number

PI8904050

Type

Invention Patent

Filing

08/11/1989

Publication

04/17/1990

Progress at the INPI

  1. Filing08/11/89
  2. Publication04/17/90
  3. Examination11/20/90
  4. Allowance06/09/92
  5. Grant05/25/93
  6. Expired12/22/09

The letters patent expired on 12/22/2009: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Standard Inc

US

See this company's full portfolio

Inventors

L. B. (pessoa física)

Technical data

IPC Classification

Priority claims

US

257.354 · 10/13/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/14/1989

RPI 995

Carta-patente expirada

#21.1

Patente extinta em 11/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

05/25/1993

RPI 1173

14.7

02/09/1993

RPI 1158

Notificação para pagamento de retribuição

#13.1

10/27/1992

RPI 1143

Deferimento

#9.1

06/09/1992

RPI 1123

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

Publicação do pedido de patente

#3.1

04/17/1990

RPI 1014

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